Laryngoscopic View in Sniffing Position Versus Simple Head Extension ; A Comparative Study
Boonsong P*, Punjasawadwong Y, Sukuprakarn W, Wongpunkamol S
Department of Anesthesiology, Faculty of Medicine, Chiangmai University , Chiangmai 50200
The sniffing position is recommended for optimization of glottic visualization under direct laryngoscopy. However, no studies have confirmed its superiority over the simple head extension. One hundred and twenty patients undergoing elective surgery were randomized into two groups. Group A was the sniffing position group. The sniffing position was obtained by placement of 10 cm cushion under the patient's head. Group B was the simple head extension group. In group B there was no cushion placement. After propofol induction and paralysis with rocuronium, we recorded laryngoscopic view under direct laryngoscopy. Then the intubation of the trachea was performed. Laryngoscopic view was assessed by using the Cormack and Lehane classification. We found that laryngoscopic view distribution was not significantly modified between the two groups. In conclusion, the simple head extension position is as good as the sniffing position in full view of the glottic exposure.
วิสัญญีสาร ปี 2547, April-June ปีที่: 30 ฉบับที่ 2 หน้า 13-18
laryngoscopic view, simple head extension, sniffing position